Add tiered LOTL mining onion and fleet recon so agents can fallback across execution tiers while operators see spread and vuln posture in Crucible. Includes triple-onion chain, spread cred graph, and full Go/TS/E2E test validation.

server/web/src/help/presencePages.ts

@@ -1,7 +1,7 @@
 /** Map dashboard routes to human-readable page names for comrade presence. */
 const PAGE_LABELS: Record<string, string> = {
   '/dashboard': 'Command Deck',
-  '/agents': 'Fleet Roster',
+  '/agents': 'Crucible',
   '/crucible': 'Crucible',
   '/forge': 'Forge',
   '/builder': 'Forge',